Preheat the oven

• Preheat the oven to 180 °C.
• Line a small baking dish with baking paper.

Mash the bananas

• Peel the bananas and mash them in a mixing bowl until smooth.

Make the batter

• Add the peanut butter and cocoa powder to the mashed banana.
• Mix until you get a thick, even chocolate batter.

Bake the brownies

• Pour the batter into the lined baking dish and spread it evenly.
• Bake until the top is set and a toothpick comes out slightly moist.

Cool and cut

• Let the brownies cool completely in the dish.
• Cut into squares and serve.